Not been on here for about a month and had a number of PMs. About items was trying to sell. I was able to read them but for some reason I no longer see a reply button on the page- so unable to reply- what happened to it?

I have a bunch of them from lots of people and there is not a reply button on any of them. Including one just sent from you. I do have an older computer and am using the simpler version of the website.